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Age 5 to 11
Challenge Level Yellow star
Primary curriculum
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What do you know about even numbers?
What do you know about the ones digit of even numbers?
Where could the digit that the computer has given us go - in the ones or tens? Why?
How can you make a large number?
How do you know that's the largest even number you can make?

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Vincent and Tara are making triangles with the class construction set. They have a pile of strips of different lengths. How many different triangles can they make?

Noah

Noah saw 12 legs walk by into the Ark. How many creatures did he see?

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The NRICH Project aims to enrich the mathematical experiences of all learners. To support this aim, members of the NRICH team work in a wide range of capacities, including providing professional development for teachers wishing to embed rich mathematical tasks into everyday classroom practice.

NRICH is part of the family of activities in the Millennium Mathematics Project.

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